Description of the automorphism groups of some Leibniz algebras

L.A. Kurdachenko (Oles Honchar Dnipro National University),
O.O. Pypka (Oles Honchar Dnipro National University),
M.M. Semko (State Tax University),


Let $$$L$$$ be an algebra over a field $$$F$$$ with the binary operations $$$+$$$ and $$$[,]$$$. Then $$$L$$$ is called a left Leibniz algebra if it satisfies the left Leibniz identity: $$$[[a,b],c]=[a,[b,c]]-[b,[a,c]]$$$ for all elements $$$a,b,c\in L$$$. A linear transformation $$$f$$$ of $$$L$$$ is called an endomorphism of $$$L$$$, if $$$f([a,b])=[f(a),f(b)]$$$ for all elements $$$a,b\in L$$$. A bijective endomorphism of $$$L$$$ is called an automorphism of $$$L$$$. It is easy to show that the set of all automorphisms of the Leibniz algebra is a group with respect to the operation of multiplication of automorphisms. The description of the structure of the automorphism groups of Leibniz algebras is one of the natural and important problems of the general Leibniz algebra theory. The main goal of this article is to describe the structure of the automorphism group of a certain type of nilpotent three-dimensional Leibniz algebras.


Leibniz algebra; automorphism group

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